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From "Joel Knighton (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-6061) Rewrite TokenMetadata
Date Wed, 11 Nov 2015 17:46:11 GMT


Joel Knighton commented on CASSANDRA-6061:

I think Ariel meant to link to [CASSANDRA-10485]. I agree that TokenMetadata is fragile in
its current state; in another ticket, we just got done reworking the application state map
inside endpoint states to COW.  In general, I've found this whole subsystem prone to races
and think a rework needs careful consideration.

I think COW is a reasonable solution in the interim.

> Rewrite TokenMetadata
> ---------------------
>                 Key: CASSANDRA-6061
>                 URL:
>             Project: Cassandra
>          Issue Type: Task
>            Reporter: Jonathan Ellis
>            Priority: Minor
> Feels like this "mostly works" but is generally fragile (see: shuffle).
> Would be good to get a fresh perspective on it and see if we can do better.
> Bonus would be, ability to bootstrap multiple nodes w/o Two Minute Rule.  Probably would
involve using LWT on pending ranges state.

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